Brake for cars.



P. SHUMINSKI. BRAKE FOR CARS. APPLIOATION FILED APR. 4, 1913.

1,104,226; Patented July 21,1914.

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Unrrnn srarns PATENT OFFIGE.

PIOTR SHUlVIINSKI, OF HAMILTON, O1\TTARIO, CANADA, ASSIG-NOR OF ONE-FOURTH TO J. LOUIS GOLDBERG, OF HAMILTON, CANADA.

BRAKE FOR CARS.

To all whom it may concern Be it known that I, PIOTR SHUMINsxI, a subject of the Czar of Russia, residing at 127 Cannon street west, in the city of Hamilton, in the county of WVentworth, in the Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Brakes for Cars, of which the following is a specification.

This invention relates to brakes for cars, and it has for its main object the elimination of all chain connections between the brakestrap or shoe and the means for applying same, with the result that increased efficiency is attained.

A further object of my invention is to furnish a brake for cars which is instantaneous in action when once applied.

With these and other objects in view my invention consists essentially in the novel construction, arrangement and combinations of parts hereinafter fully described illustrated on the accompanying sheets of drawings forming a part of this specification, and more particularly pointed out by the appended claim.

In the drawings, Figure 1, is an underside plan view of one convenient embodiment of my invention and as more particularly applicable to street cars. Fig. 2, is an end view of the same.

Like characters of reference designate the same or similar parts in all the figures.

As shown in the drawing, I form a box frame or casing including spaced side members 1, 1, adapted for fixture to any convenient part of the car underframe 2, by bolts passed through the holes 3, 3.

4, is the rear end piece which is rigidly secured to the side members 1, 1, by set screws or bolts 5, 5.

6, is the front end piece of channel shape and it is fitted with a covering plate 7, said parts being rigidly secured to the aforesaid side members 1, 1, by bolts 8, 8, having lock nuts 9, 9.

Journaled longitudinally of the frame or.

casing, I revolubly mount two screw threadwhereof is provided with a left hand thread Specification of Letters Patent.

Application filed April 4, 1913.

Patented J lily 21, 1914.

Serial No. 758,820.

and the latter with a right-hand thread for example; or vice versa. These two screwthreaded rods pass through similarly threaded holes 12, 13, provided for their reception in a block 14, to which is securely attached for operating the brake-strapnot shown is pivotally connected in any suitable manner. 17, 17 are gear wheels or arcuate toothed disks securely keyed on the screw threaded rods 10, 11, respectively, between the abovereferred to parts 6, 7, all of which will be readily comprehended on an examination of the drawings. To the outer or front end of one of the rods 10, 11, the former for instance I fix a miter-wheel 19, in gear with a similar wheel 20, under the control of a brake handle or levernot shownthrough the vertical shaft 21. Obviously the brake handle or lever will be mounted in the motormans vestibule in the well known way.

From the foregoing description and accompanying drawings it will be readily seen that by my invention I provide an extremely effective and reliable device for the purpose set forth. It is also to be understood that I do not confine myself to the specific forms, arrangements and combinations of parts illustrated and described, various alterations in their shape and the arrangement thereof being possible without in any way departing from the spirit and scope of my invention, and it is intended to include all such within the present application, or as may reasonably be construed as falling within the scope of the appended claim.

Having thus set forth my invention, what I claim as new and desire to secure by Letters Patent, is

In a device of the character described, the

cross head and disposed upon opposite sides Wentworth, Province of Ontario, Canada,

of said brake actuating rod, a spur gear this 25th day of March, A. D. 1913. Wheel carried by each of said reversely threaded rods, said gear Wheels meshing PIOTR SHUMIM 5 With each other, and means for imparting In the presence ofrotation to one of said rods. ALFRED Gr. BRATToN, Signed at Hamilton, in the county of ALFRED GOLDBERG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

